Vise cutter



July 1, 1942. V (g, M, ERNST 2,288,998

'VISE CUTTER Filed Jan. 17, 1941 I" I IIHI 8 INVENTOR. Jig i 650/765 MfR/VST.

A TTOR/VEK Patented July 7, 1942 UNITED STATES PATENT OFFICE VISE CUTTERGeorge M. Ernst, Edgewater, 0010.

Application January 17, 1941, Serial No. 374,903

2 Claims.

This invention relates to a cutting attachment for adapting an ordinarybench vise to a cutter for cutting metallic rods, bars, etc., and hasfor its principal object the provision of an economical and highlyefiicient device which can be quickly and easily adapted to fit the jawsof any given vise; which can be instantly put in place thereon whenneeded; and which will quickly and easily cut metallic material by thesimple operation of rotating the vise screw.

Other objects and advantages reside in the detail construction of theinvention, which is designed for simplicity, economy, and efliciency.These will become more apparent from the following description.

In the following detailed description of the invention reference is hadto the accompanying drawing which forms a part hereof. Like numeralsrefer to like parts in all views of the drawing and throughout thedescription.

In the drawing:

Fig. 1 is a perspective view illustrating the improved attachment inplace on a typical bench vise;

Fig. 2 is a face view of one of the attachment members illustrating itas furnished to the user and before being fitted to the vise;

Fig. 3 is a plan view thereof; and

Fig. 4 is a longitudinal section, taken on the line 4-l, Fig. 2.

In the drawing, the fixed jaw of a typical Vise is illustrated at H),the movable jaw thereof at H, and the handle for rotating the vise screwat I2.

The improved cutting attachment consists of two similar devices, onebeing applied to each of the vise jaws l and H. Each of the devicesconsists of three parts, a metallic strap l3, an angle plate I4, andacutting knife IS.

The strap I3 is of sufficient length to allow its extremities to be bentback over the ends of the widest expected vise jaw, as indicated at Itin Fig. 1. The angle plate is shaped to extend vertically across thestrap l3 thence backwardly over the top of the vise jaw. The angle plateis secured to the strap by means of cars H which are formed in thestrap. The cars extend through suitable openings in the angle plate andare turned inwardly against the face of the latter to clamp the samerigidly in place.

The knife [5 has a T-shaped cross section to provide a flat base havingoppositely projecting side flanges l8. The knife projects through avertical slot in the angle plate I4 and the angle plate is formed withoverlapping portions which lie over the flanges 18 to hold the knife inplace. The knife cannot be moved upwardly or downwardly due to thelimiting confines in the slot in the angle plate 14 and cannot be movedsidewardly due to the engagement of the overlapping portions 19.

The devices are furnished to the user in the condition shown in Figs. 2,3, and 4. The user places the angle plate over the middle of the visejaw and then bends the ends of the strap around the ends of the visejaw, being careful to maintain the two plates in alignment with eachother. No further adjustment is required. When not in use, the devicecan be simply lifted from the vise jaw. When desired for use, they canbe simply slipped thereon.

For cutting bar stock the latter is placed between the two opposingknives of the device and the vise screw handle I2 is rotated to causethe jaw l l to approach the jaw 10. This forces the two knives into thebar. This forcing can be continued until the entire bar is severed orthe bar can be indented sufficiently on all Sides to allow it to bebroken to form a more regular fracture.

While a specific form of the improvement has been described andillustrated herein, it is desired to be understood that the same may bevaried, within the scope of the appended claims, without departing fromthe spirit of the invention.

Having thus described the invention, what is claimed and desired securedby Letters Patent is:

A cutting attachment for vise jaws comprising: two similar cuttermembers each consisting of a horizontal strap extending across the faceof a vise jaw; rearwardly turned extremities on said strap engaging theends of a vise jaw; an angle member extending upwardly across the faceof said strap and rearwardly over said vise jaw; a vertical knife memberhaving a T- shaped cross section to provide two oppositely extendingside flanges, said knife member extending through an opening in saidangle member and projecting beyond the face of said strap; means forsecuring said angle member to said strap; and said side flangesprojecting between said angle member and said strap to hold said knifemember in place.

2. A cutting attachment for vise jaws comprising: two attachmentmembers, each of said attachment members including a strap; means forsupporting said strap horizontally across the face of a vise jaw; aknife member extending vertically of said strap, said knife memberhaving a T-shaped cross section to provide two uppositely extending baseflanges; an angle member extending upwardly over the face of said strapand rearwardly over said vise jaw and provided with openings in itsvertical portion, said knife member extending through one of saidopenings with its base flanges contacting the rear face of said anglemember; and tongues formed. on said strap and extending through theremaining openings said tongues being bent over the face of said anglemember to clamp said base flanges between said strap and. said anglemember.

GEORGE M. ERNST.

